Electric lighting.



F. L. TEMPLE. ELECTRIC LIGHTING. APPLIGATION ILEIJ AUG. 2B, 1911.

Patented Nov. 12,1912.

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Inventor: FREDER/ Lwoo/v TEM PL E lF. L. TEMPLE. ELBGTRIG LIGHTING. rrxonroxnmn 11111.28, 1911.

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FREDERIC LANDON TEMILE,

OF CEDAR GROVE, NEW JERSEY, ASSIGNOR TO THE vBRYANT ELECTRIC COMPANY, 0F BRIDGEPORT, CONNECTICUT, A. CORPORATION OF CONNECTICUT.

Specification of Letters Patent.

ELECTRIC LIGHTING.

Patented Nov. 12., 1912.

Application led August 28, 1911. Serial No. 646,461.

To ail whom it ma concern.

Be it known that I, Fnuonnio Lauper' TEMPLE, a subject 'of the Kingot Great Britain, and residing at Cedar Grove, in the county of Essex and State of New Jcr sey, have invented certain new and uset'ul Im rovements in Electric Lighting, ot' which the followingl is a specification.

My invention relates to the art of electric lighting and the object of my invention is to provide means for controlling the lighting of incandescent lamps installed in switch sockets so that the same may be lighted without regard to the position of the socket switch. l

In the accompanying drawings, Figure 1 is a side elevation of a socket by which my invention may be carried out in one torni; Fig. 2 is a vertical section through awportion thereof on the line 2,2, Fig. 1; Figs. 3 and 4 are exemplary diagrams of dilterent methods of wiring for use in connection with a socket of this character; Fig. 5 is a vertical section through a detail. l

In house lighting the most commonly installed lamp socket is one in which a cutout is embodied in the socket structurepthe ordinary key, push button, and pull switch sockets being the usual ittings thus emsockets of this character it is impossible to light theV lamp unless the socket switch is in the on iosition. Con` sequently any remote control of lamps in such an installation, without' regard to the position of the socket switch, has heretofore een impossible. I now propose to so construct a socket of this type that the same may be controlled from a distant switch without regard to the position ot the socketswitch. To illustrate my invention I have embodied t-he same in a key socket of common type which comprises as usual shell and cap A and B, upper and lower insulating butto-ns 10 and 11 connected by terminal bars 12 and 13 for the wires X and Y the former being connected to the lam receiv-4 ing shell 14 by the screw 15 and tie latter being connected to the lamp center contact- 16 through a cutout mechanism of common type. The mechanism shown comprises a cutout block 17 actuated by the thumb key 18 and subjected to the pressure ot the spring 19 which surrounds the standard 20 and bears against the block 17 through the washer 21 sliding onthe standard. When-v the block is in the on position it contacts with the spring arm 22 which is electrically connected to the wire terminal 13 and leads the current therefrom to the center contact through the standard 20. W'hen in the ott position, theblock lies in the position shown in Figs. 1 and 2, spaced from and out of contact with the spring arm 22. As above stated, it has heretofore been impossible to put the lamp in circuit so long as the cutout remains in this position.

In order to permit the lamp to be lighted while its cutout is in the oli position, I arrange upon the socketa third wire terminal 23 leading to the lamp center contact-in the switch circuit through a connection other than the cutout block 17. In the construction shown this connection is effected through the contact arm 24 which projects into the path of and is engaged by the washer 21 as the latter rises under the intluence of the spring 19 when the switch block 17 is turned to the oit position. To this supplemental terminal 23, a wire Z is led through the remote switch 25 (di agrammatically illustrated in Fig. 3), from the main Y which is connected to the wire terminal The socket cutout as above explaineC( is interposed between this terminal 13 and the center lamp contact. As will be readily understood, this supplemental connection to the center lamp terminal makes it possible to light the lamp by merely operating the remote switch 25, while the block 17 ot the socketswit-ch is in the oil position.

The utility of the construction is obvious, e

since with an installation of this character, the entire series of lights in a house may be flashed on in an instant by the operation of the remote switch 25 located tor instance in the bed room, and it is impossible for any of the lights to be extinguished except by the breaking of the circuit against this remote switch. On the other hand each lamp is readily controlled by its socket cutout when the remote switch 25 is citiy Should the number of lights in the series be greatenough to make the use of a double pole switch desirable, the system may still be employed by the use of a remote switch of the character illustrated diagrammatically in Fig. 4. Here as will be noted the main X is connected to the terminals 2(3-27 of the remote switchwhile the branch Z switch. y

from the Y main, is connected to the terminals 2S-29. The switch contact 30 which connects theterminals'k 28, 29 is of the usual two arm character making or breaking the switch on each quarter revolution of the spindle 31. Thel contact 32 for the terminals 26-27 however has four arms, so that these terminals are connected at every halt of the switch spindle 3l and the current passes therethrough even when the circuit through the terminals 28-29 is interrupted, thus permitting the lamp circuit to be made or broken by the socket cutout in the usual fashion.

IVhile the invention has been illustrated in a socket of such construction that the supplemental terminal 23 is electrically connected to the center contact only when the socket switch is in the oit position, obviously it is'unnecessary to limit the duration of this supplemental center contact c0nnection to such period, since the connection to the terminal 23 is normally interrupted at the remote control switch and so long as this is oil a connection between -the terminal 23 and the center contact is immaterial. The lamp circuit is then made solely by the operation of the socket switch in precisely the same manner as if the supplemental con-4 nection did not exist. In Fig. 5 I have shown a combined standard and wire terminal 33 which may be substituted for the standard 20, terminal 23 and contact arm 24 of Figs. l and 2 to establish an unbroken connection between the supplemental wire terminal and the cutout lamp terminal.

It must be understood that thesocket illustrated is shown merely by way of example and that the supplemental wire terminal and connection to the lamp terminal -beyond the socket cutout may be arranged in various ways not only in the present socket but in other types of sockets without` departing from my invention. It will also be realized that the addition of this supplemental terminal does not interfere in an way with the utility of the socket for ordinary installations in which a remote control is not desired. The. structure explained gives however an added utility to sockets in which it is embodied and lits them for use in the lighting system explained.

I claim as my invention l. In a lighting system, an electric lamp socket having line wire terminals, lamp terminals, a switch of the make and-break type cont-rolling the circuit between the line and lamp terminals, constant connections` between t-lie switch terminals and the line wire terminals, in combination with a supplemental wire terminal on the socket for a lead to a remote switch, and a connection between said terminal and a lamp terminal in the socket switch circuit, said connection being closed in the open posit-ion of the socket switch, for the purpose described. v

2. For use in a lighting system, a standard electric lamp socket having a switch of the make and break type in one branch of the lamp circuit, a supplemental wire terminal and a constant connection therefrom to the lamp terminal in the switch circuit, for the purpose described.

.li testimony whereof I have Vsigned my name to. this specification, in the presence o1 two subscribing witnesses.

FREDERIC LANDON TEMPLE.

Witnesses:

WILLJAM ABBE, L. H. GROTE.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

